Hi, I have this problem with the fingerprint reader under display of my xiaomi mi 9.
When it is resting on a surface I cannot unlock it with the fingerprint, I find this very annoying especially when I am at work and the phone is resting on the desk and I would like to unlock it, or when it is on the bedside table. The only way that allows me to unlock it with the sensor under the display is to take it in hand and unlock it.
I did several tests and I noticed that it is enough to touch the metal frame with a finger to allow the phone to unlock with the fingerprint reader. Alternatively, just have the USB cable inside the door.
If it is on a surface (for example a table or a desk) it does not allow me to record the imprint because it does not even detect the finger.
I don't understand if it is a thing wanted by xiaomi or it is a problem?
I leave below a video where I show what I said.
https://youtu.be/WRYgob9KETE
After Global Beta 9.5.9 Update
https://forum.xda-developers.com/showpost.php?p=79507139&postcount=26
https://youtu.be/Ve6eCVPhcY0
That is really weird
I have the same problem. It is quite weird that sometimes the fingerprint is working ok, sometimes it doesn't work at all, especially when on flat surface like in your example. I think it is working better for me now, after having erased and registered fingerprints again. Also, I feel that slightly "rolling" your finger on the fingerprint is working most of the time (for example put the left side of your fingerprint on the sensor then roll it to the right side, it should work better). I am on latest Xiaomi eu rom (9.5.1) and it seems a bit better too (or maybe I just get used to it!).
My FP is good, doesn't have the problem like you said. On flat surface or anything, it's working. I'm using Xiaomi.EU Dev 9.5.1
Try to add same finger multiple times like fingerprint 1, 2 3 and 4. That's what I did and it is now better.
I'm on the last Global Beta (9.4.26) and before last EEA but the problem persist. I tried to record several times but without success. When the phone is resting on a surface it does not work. If it's in my hand it almost always works perfectly.
I can try to install the .eu and see if there are improvements.
I have the same issue on lastest EEA update. When the phone is on flat surface, the sensor barely recognizes my finger input. Im pretty sure that was working fine before the last update.
I hope this is a problem that can be solved via software with a future update. The point is that some have the same problem as me, while others work perfectly in any situation. So it is difficult to understand what is wrong.
I have the same issue. It almost never work unlocking in flat surface. The only way is to press the sensor really hard with force, then it will unlock. I have similar case in redmi 3x, the screen dramatically lose sensitivity in flat surface. I dont know what causes. Maybe it is related to electrical grounding.
Can anyone make a thread in miui bug report forum? I will support it..
arddy1 said:
I have the same issue. It almost never work unlocking in flat surface. The only way is to press the sensor really hard with force, then it will unlock. I have similar case in redmi 3x, the screen dramatically lose sensitivity in flat surface. I dont know what causes. Maybe it is related to electrical grounding.
Can anyone make a thread in miui bug report forum? I will support it..
Click to expand...
Click to collapse
I created this I hope is right, if you want to comment and give your support.
https://en.miui.com/thread-6549122-1-1.html
rizzino said:
I created this I hope is right, if you want to comment and give your support.
https://en.miui.com/thread-6549122-1-1.html
Click to expand...
Click to collapse
I cant comment there. They are moving to c.miui.com
In community app, seems its in feedback subforum..
Same problem for me with last EEA 10.2.24
If phone is on a flat surface the fingerprint seems to stop working
Last update was ok
Enviado desde mi MI 9 mediante Tapatalk
Yes Mi Forum is read-only since today, they want you to use Mi Community instead, but looks more like a Facebook group than a serious forum.
For me (latest 10.2.9 Global ROM), the fingerprint when flat on a surface works just fine; but as others said before, try re-adding your fingerprints using more different and wider angles; perhaps your finger was at 0 degree when you added the fingerprint whilst in real-life practice your finger is usually at 15 degrees. Making sure you cover all the sides of your finger helps (I have 5 fingerprints for 5 fingers registered, one was responding badly, so I readded that one and it works fine ever since).
But perhaps its indeed (latest( EEA ROM related ?
Same issue with the latest Global Beta, sadly.
SKiLLa XP said:
Yes Mi Forum is read-only since today, they want you to use Mi Community instead, but looks more like a Facebook group than a serious forum.
For me (latest 10.2.9 Global ROM), the fingerprint when flat on a surface works just fine; but as others said before, try re-adding your fingerprints using more different and wider angles; perhaps your finger was at 0 degree when you added the fingerprint whilst in real-life practice your finger is usually at 15 degrees. Making sure you cover all the sides of your finger helps (I have 5 fingerprints for 5 fingers registered, one was responding badly, so I readded that one and it works fine ever since).
But perhaps its indeed (latest( EEA ROM related ?
Click to expand...
Click to collapse
Hi. The problem is that seems like the fingerprint is disconnected. It doesn't react to any finger, it doesn't turn on. As soon as you pick up the phone it works flawlessly with any of the registered fingerprints.
Enviado desde mi MI 9 mediante Tapatalk
rizzino said:
Hi, I have this problem with the fingerprint reader below the display of my xiaomi mi 9.
When it is resting on a surface I cannot unlock it with the fingerprint, I find this very annoying especially when I am at work and the phone is resting on the desk and I would like to unlock it, or when it is on the bedside table. The only way that allows me to unlock it with the sensor under the display is to take it in hand and unlock it.
Click to expand...
Click to collapse
I had the same problem on stock MIUI, with locked bootloader. Now I'm on Revolution OS and the problem seems solved, so I think it's a software issue.
Anyway when I had the problem, when the phone was on flat surfaces, I used to put my thumb on the bottom frame of the device, unlocking with the index (so using just one hand), and it worked perfectly. You can try this as a temporary workaround waiting for a software fix.
Marcgyver675 said:
Hi. The problem is that seems like the fingerprint is disconnected. It doesn't react to any finger, it doesn't turn on. As soon as you pick up the phone it works flawlessly with any of the registered fingerprints.
Enviado desde mi MI 9 mediante Tapatalk
Click to expand...
Click to collapse
Ok, that clarifies things; I thought it was conditionally unresponsive or inaccurate, but what you describe seems like the wakelocks are too aggressively set., very typical of MIUI.
Normally one would go Settings | Battery & Performance | Power Usage, and in the top-right hamburger-menu select 'Show System Apps' and select the Lock Screen or Fingerprint / Biometric services app and disable it's 'Power Restrictions' , but MIUI hides all most internal services.
Instead, download the MiAppa and click the 'Battery optimisation' tool; then in the blue title/dropdown bar select 'All Apps' instead of the default 'Not optmised' ... now a lot of internal services and components show up. Scroll down to 'MiuiBiometric' and changes it's 'optimize' setting to 'dont optimize'. That might help with it's wakelocks being filtered. I haven't tested the setting myself - and there are a lot of other system services that might be relevant to test - so please give it a good try.
Alternatively, run a custom ROM or enable the double-tap to wake (and/or pickup to wake, but I think you already had that active), so you tap to 'wake' it, and then the fingerprint does work instantly. Internally in 'deep sleep' state it might not respond to the fingerprint directly (i.e. after a few minutes idling with screen off), whilst screen-off idle before the deep-sleep state still works fine ...
Latest 10.2.24 EEA, zero problem.
Cue the "omg omg I have a bad phone how to fix plzzz"
SKiLLa XP said:
Ok, that clarifies things; I thought it was conditionally unresponsive or inaccurate, but what you describe seems like the wakelocks are too aggressively set., very typical of MIUI.
Normally one would go Settings | Battery & Performance | Power Usage, and in the top-right hamburger-menu select 'Show System Apps' and select the Lock Screen or Fingerprint / Biometric services app and disable it's 'Power Restrictions' , but MIUI hides all most internal services.
Instead, download the MiAppa and click the 'Battery optimisation' tool; then in the blue title/dropdown bar select 'All Apps' instead of the default 'Not optmised' ... now a lot of internal services and components show up. Scroll down to 'MiuiBiometric' and changes it's 'optimize' setting to 'dont optimize'. That might help with it's wakelocks being filtered. I haven't tested the setting myself - and there are a lot of other system services that might be relevant to test - so please give it a good try.
Alternatively, run a custom ROM or enable the double-tap to wake (and/or pickup to wake, but I think you already had that active), so you tap to 'wake' it, and then the fingerprint does work instantly. Internally in 'deep sleep' state it might not respond to the fingerprint directly (i.e. after a few minutes idling with screen off), whilst screen-off idle before the deep-sleep state still works fine ...
Click to expand...
Click to collapse
Thanks. I've been trying what you said without success. Doesn't matter if the screen is on (on lock screen) or off. It seems like you need to be touching and holding the device with the hand.
What is surprising me is that if I am touching with a finger the frame of the phone in the usb port zone (the only part exposed as I am using a Nillkin cover) then seems to work the fingerprint sensor.
The problem only appeared since the last update so I am pointing to software error. I've reported to Xiaomi through the app.
Enviado desde mi MI 9 mediante Tapatalk
SKiLLa XP said:
Ok, that clarifies things; I thought it was conditionally unresponsive or inaccurate, but what you describe seems like the wakelocks are too aggressively set., very typical of MIUI.
Normally one would go Settings | Battery & Performance | Power Usage, and in the top-right hamburger-menu select 'Show System Apps' and select the Lock Screen or Fingerprint / Biometric services app and disable it's 'Power Restrictions' , but MIUI hides all most internal services.
Instead, download the MiAppa and click the 'Battery optimisation' tool; then in the blue title/dropdown bar select 'All Apps' instead of the default 'Not optmised' ... now a lot of internal services and components show up. Scroll down to 'MiuiBiometric' and changes it's 'optimize' setting to 'dont optimize'. That might help with it's wakelocks being filtered. I haven't tested the setting myself - and there are a lot of other system services that might be relevant to test - so please give it a good try.
Alternatively, run a custom ROM or enable the double-tap to wake (and/or pickup to wake, but I think you already had that active), so you tap to 'wake' it, and then the fingerprint does work instantly. Internally in 'deep sleep' state it might not respond to the fingerprint directly (i.e. after a few minutes idling with screen off), whilst screen-off idle before the deep-sleep state still works fine ...
Click to expand...
Click to collapse
Have you tried unlocking with fingerprint in lockscreen (screen on)? Doesnt it different from the phone off? Mine is still same. When screen on, it should not be optimized.
Well, trick of unlocking with finger hold in side of phone seems help, but not much.
Plus add this trick, register your thumb 2 or 3 times, focus registering and unlocking in the center of thumb, not the tip. Dont use index finger. These combination of tricks really help for me unlocking in flat surface.
Hello everyone,
A few days ago I installed the V11.0.4.0.PFGMIXM firmware and no longer face the Proximity problem anymore.
Just download and flash newest Firmware You can download it at here: https://xiaomifirmwareupdater.com/firmware/lavender/
perfect, thanks for sharing, excuse me, after doing this do you know if it also solves the GPS location problems?
thacruz said:
perfect, thanks for sharing, excuse me, after doing this do you know if it also solves the GPS location problems?
Click to expand...
Click to collapse
I don't meet any problem with GPS location before and after flash this firmware.
I just started experiencing a proximity sensor issue on MIUI 11, EU version 11.0.4.0
It occurred a few times after longer phone calls (more than 10 mins) when I removed the phone from my face, the screen would not light up. Neither the lock button nor the fingerprint sensor would wake it up, and I had to wait for the other person to hang up. Or maybe it only reacted to the lock button after 5 seconds or so.
I don't remember this happening previously. Is this something you guys have experienced?
Same problem
Quaresma_7 said:
I just started experiencing a proximity sensor issue on MIUI 11, EU version 11.0.4.0
It occurred a few times after longer phone calls (more than 10 mins) when I removed the phone from my face, the screen would not light up. Neither the lock button nor the fingerprint sensor would wake it up, and I had to wait for the other person to hang up. Or maybe it only reacted to the lock button after 5 seconds or so.
I don't remember this happening previously. Is this something you guys have experienced?
Click to expand...
Click to collapse
I faced same problem and i never paid attention to it. Now and I'm reading your post, i come to realize that the redmi-note-7 has a sensor problem and i have a miui 11.0.4.0 global version
I have heard about other people having proximity sensor issues on earlier versions of MIUI, also different editions (China, Global, EU). I've even advised some of them to re-calibrate the sensor through the service menu. I've been using the phone for 9 months now, I believe. I've updated it regularly and never reset it to factory settings. If this keeps up, I'll try re-calibration. If it doesn't disappear with the calibration or the next MIUI update, only then I'll consider factory reset
Hello
How I have Redmi Note 9 Pro MIUI 11.0.4.0, how can I turn off the proximity sensor? I have the screen problem other people are mentioning above
Hello,
I havent' posted anything here in years, so I'm out of touch with the latest on this forum. Ever since I got my Note 8 (International unlocked dual-SIM model), my GPS stopped working after the first week. I know this is a Samsung thing, so I lived with it.
Now my accelerometer stopped working mysteriously, and I'm already on the latest firmware which should have fixed the GPS issue (but it didn't).
When I do the hardware test (*#0*# from the dial screen) it shows no movement in the roll, pitch or yaw axis and the same for the magnetometer). I've done numerous reboots, and toggles of the auto-rotate feature of the phone, but the issue is still the same. Other than a factory reset, what other troubleshooting steps can I take?
Perhaps there is a toggle in Developer Options or in Quick Settings that you accidentally switched?
I'm saying this because Stock Android 12 has a "Sensors off"-QS Toggle that disables sensors on the phone ^^
But... I don't remember the Galaxy Note 8's software having such a button...but just throwing this out there
Thanks for your reply. I had checked for such an option. I even disabled Developer Options altogether.
I did the Samsung hardware test (*#0*#), and neither the accelerometer nor the compass moved.